Improvement in sawing-machines



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JAMEsDMATTHEWs or NILEs,M1oHIeAN.

Leners Patent No. nrlsrdaed January 24, 1871.

IMPROVEMENT IN SAwlNG-MACHINES.

The Schedule referred to in these Letters Patent:` and making part of the same.

I, .Lines D. MATTHEWS, of Niles, in the county of Berrien and State ofMichig-an, have invented oertain Improvements inl Portable Hand-sawing Machines, of' which the following is `a speoication:

My invention relates to the construction of a 1nachine in such a manner as to secure at once a buck and log-saw. 4

Figure l is a side elevation of a machine embodyinf,r my invention.

' ,Figure 2'is a front View of the saine.

`General Description.

A is the frame of tl're machine.

T, the cranks to which power is applied.

H, the gearing. y

Q, the shaft, to one end of which the pinion is attached, and. to the other end the ily-wheel B is. se' cured, the Wrist of which a pitinan, l), connects with the slide E,Whic`h inoves in the upright guides F.-

lo said slide, at G, thearms. of the saws G are secured in such a manner as to permit them to open and close upon each other, being), regulatedY by-the feed-springs K when in action.

Said springs have rollers at one extremity, which operate upon the arms G of the'saws. The other.

ends of said springs are secured to the slide O.

The arms G of the saws work freely through a slot ih the slide O, and canbe thrown apart by means of the lever L.

The stick of wood to be sawcd is secured on the buck D by the lever M, said lever being` held down by the teeth in R.

The frame of the machine can .be separated at A.

.The upper and lower portions are fastened together by the hooks J.

The machine complete is designed, principally, for sawing cordwood, as represented in the drawing, but the part above the line A can be removed' from the lower portion or buck-frame and be secured to a log by means of the hooks J.

W'hen it is intended to saw logs, straight saws can be inserted in the place of the buck-saws. wWhen the v saws are forced apart the rollers on the feed-springs K roll, up the arms G of the saws, and would operate thereon with less effect, brit being bent np or strained they have more power than when acting in a more direct line upon the arms Gr at a lower point; hence the power is equalized -in eitherposition.

, Claim.

I claim as my invention- The combination of the saws S with the feed-springs K, the slide E, and the gearing F, B, Q, H, and T, substantially as and for the purpose herein set forth.

' JAMES D. MATTHEWS.

v'Witnesses l CALVIN B. SMITH, InnLnY HALE, Jr. 

